Senior Java Developer

B2B Freelance Opportunity

Mode: Onsite

Start date: January 2027

Duration: 12 months (renewable)

Location: Luxembourg

Languages: English (mandatory),French(fluent)

Responsibilities

• Design and develop Java applications.
• Create technical prototypes and mock-ups.
• Ensure application maintenance and provide support to junior developers.
• Perform code reviews, testing, and quality control checks.
• Participate in deployments and user training.

Required Skills

• Java, Spring Framework
• HTML5, JSON, Angular
• REST and SOAP Web Services
• Code review and software quality assurance